Toothbrush



FIG. 1 is a front view of the toothbrush, showing our new design;

FIG. 2 is a back view of the toothbrush shown in FIG. 1;

FIG. 3 is a side view of the toothbrush shown in FIG. 1; and,

FIG. 4 is a side view of the other is side of the toothbrush shown in FIG. 1. 

We claim the ornamental design for a toothbrush, as shown and described. 